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| author | Nick Mathewson <nickm@torproject.org> | 2011-11-09 10:28:43 -0500 |
|---|---|---|
| committer | Nick Mathewson <nickm@torproject.org> | 2011-11-09 10:28:43 -0500 |
| commit | 9452b65680deee698dbc8c4eae929aba3b75b198 (patch) | |
| tree | 439725f628c985a538c1ed8222499fe6d5f7c66f /src/common/compat.h | |
| parent | d4489a2851f6bfe429c33578e2f4f9c127598b8e (diff) | |
| parent | 0cc7a63fc0f8e23e0dc01a36de9a369671bdd4d5 (diff) | |
| download | tor-9452b65680deee698dbc8c4eae929aba3b75b198.tar tor-9452b65680deee698dbc8c4eae929aba3b75b198.tar.gz | |
Merge remote-tracking branch 'origin/maint-0.2.2'
Diffstat (limited to 'src/common/compat.h')
| -rw-r--r-- | src/common/compat.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/common/compat.h b/src/common/compat.h index 045f414c6..b005dd297 100644 --- a/src/common/compat.h +++ b/src/common/compat.h @@ -180,6 +180,10 @@ extern INLINE double U64_TO_DBL(uint64_t x) { /** Expands to a syntactically valid empty statement. */ #define STMT_NIL (void)0 +/** Expands to a syntactically valid empty statement, explicitly (void)ing its + * argument. */ +#define STMT_VOID(a) while (0) { (void)(a); } + #ifdef __GNUC__ /** STMT_BEGIN and STMT_END are used to wrap blocks inside macros so that * the macro can be used as if it were a single C statement. */ @@ -618,7 +622,7 @@ void tor_threads_init(void); #else #define tor_mutex_new() ((tor_mutex_t*)tor_malloc(sizeof(int))) #define tor_mutex_init(m) STMT_NIL -#define tor_mutex_acquire(m) STMT_NIL +#define tor_mutex_acquire(m) STMT_VOID(m) #define tor_mutex_release(m) STMT_NIL #define tor_mutex_free(m) STMT_BEGIN tor_free(m); STMT_END #define tor_mutex_uninit(m) STMT_NIL |